Research Article

Determination of Residual Nonsteroidal Anti-Inflammatory Drugs in Aqueous Sample Using Magnetic Nanoparticles Modified with Cetyltrimethylammonium Bromide by High Performance Liquid Chromatography

Figure 5

Chromatograms for nonsteroidal anti-inflammatory drugs (a) in an outlet wastewater and (b) in a spike outlet wastewater sample at 25 μg L−1.
127835.fig.005a
(a)
127835.fig.005b
(b)